스파이로피란의 광변색
Spiropyran (colorless) → Merocyanine (colored)
개요
UV light causes the C–O bond in spiropyran to break, opening the ring to form the planar, conjugated merocyanine isomer that absorbs visible light and appears colored. Visible light or heat reverses the reaction. This reversible photochromism is the basis for smart materials that change color in response to light.
일상 속 예시
Photochromic sunglasses (Transitions lenses) that darken in sunlight use similar photochromic molecules that reversibly change structure.
산업적 중요성
광변색 재료는 자가 착색 안경, 스마트 창, 광학 데이터 저장, 나노기술용 분자 스위치에 사용됩니다.
성질
- 유형
- 광화학
- 가역 반응
- 예
- 에너지
- 흡열
자주 묻는 질문
What is the equation for 스파이로피란의 광변색?
The balanced equation is: Spiropyran (colorless) → Merocyanine (colored).
What type of reaction is 스파이로피란의 광변색?
스파이로피란의 광변색 is a 광화학 reaction. It is reversible under certain conditions.
Is 스파이로피란의 광변색 exothermic or endothermic?
스파이로피란의 광변색 is endothermic (absorbs energy).